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05-23-2012, 11:00 PM
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#1 |
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Registered User
Join Date: Dec 2011
Location: Madison, Kansas
Posts: 102
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12 bolt rearend, 6 lug to 5 lug
I have a 6 lug 12 bolt truck rearend with 4:11 gears in my truck now. I am wanting to convert over to 5 lug. I have a couple spare 12 bolt rearends with 5 lug axles in them. Can I just pull the axles out of the 5 lug parts rearend and put them into the rearend that originally had the 6 lug in it? If so or if not what do I need to do? Thanks
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05-23-2012, 11:18 PM
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#2 |
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Registered User
Join Date: Jan 2000
Location: Wyoming USA
Posts: 2,453
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Re: 12 bolt rearend, 6 lug to 5 lug
For the most part yes you can,they changed the rear end width mid 70's sometime.Measure the width from face of drum to other face of drum and see if the width is the same,if so then they will swap over.I had a narrow rear and used wider axle's,I made a 3/4" spacer to go in between the backing plate and axle housing. the rears are 1 1/2" differance between the 2 ,been running it hat way for 5 yrs and no problem.
__________________
2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327/4L60 |
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05-24-2012, 12:04 AM
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#3 |
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Registered User
Join Date: Dec 2011
Location: Madison, Kansas
Posts: 102
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Re: 12 bolt rearend, 6 lug to 5 lug
Alright thanks! I knew there was some kind of catch to doing it.
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05-24-2012, 12:56 AM
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#4 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,036
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Re: 12 bolt rearend, 6 lug to 5 lug
If your truck's rear end is a 1970, there is a good chance that it has the wider housing, and 5 lug axles would pop right in with no problem.
__________________
1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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05-24-2012, 02:42 AM
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#5 | |
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Registered User
Join Date: Dec 2011
Location: Madison, Kansas
Posts: 102
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Re: 12 bolt rearend, 6 lug to 5 lug
Quote:
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06-10-2012, 08:32 PM
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#6 |
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Registered User
Join Date: Dec 2011
Location: Madison, Kansas
Posts: 102
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Re: 12 bolt rearend, 6 lug to 5 lug
What I have is the shorter '67 12 bolt and my extra parts rearends are the newer style longer housings. What should I do to convert to five lug? I would prefer to stick with the shorter housing so I can fit bigger tires, or should I just out one of the newer style housings under there?
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06-10-2012, 09:20 PM
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#7 |
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Senior Member
 
Join Date: Oct 2010
Location: Cadiz, Ky
Posts: 514
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Re: 12 bolt rearend, 6 lug to 5 lug
If you have access to a mill I am pretty sure you can redrill your axles to 5 lug
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06-10-2012, 09:32 PM
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#8 |
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Registered User
Join Date: May 2012
Location: milton, FL
Posts: 43
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Re: 12 bolt rearend, 6 lug to 5 lug
you can buy the five lug conversion axles online. summit has moser 5 lugs for those rearends. thats what i did and theyre sweet. or cpp has conversion kits with everything you will need.
__________________
1967 c10 stepside 6.0L 4L80E 
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06-10-2012, 09:32 PM
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#9 |
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67-72 parts collector,…
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,701
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Re: 12 bolt rearend, 6 lug to 5 lug
Aftermarket 5-lug axles is your answer.
Moser Engineering or Early Classic Enterprises can fix you up.
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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06-10-2012, 10:25 PM
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#10 |
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Registered User
Join Date: Aug 2005
Location: Pasadena,Tx /Pto Pta DR
Posts: 5,415
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Re: 12 bolt rearend, 6 lug to 5 lug
we sell the axles. We also shorten and respline axles, housings, build pro stock rear ends from scratch ,redrill and plug etc. Just for info.
I think we are 90 to redrill and 50 to plug and pair of axles |
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